Hmm, I wonder if you were able to do that (but not other things) because some functions in the code I dumped appear to use protected/hidden values. I think the chicken's stats may not use those same protected structures. But, when I tried and edit them by searching for the values directly, I had no luck since I would always isolate one address for a stat as I searched/refined search, but then it would change itself to some negative number and not actually be the stat anymore(changing it did nothing, or was only visual). Did you just do something like that, or did you use the offsets from a dump to mod it?
Update:
I've tried hooking the getter/setter functions with Frida, but the process is protected and will either use the anti-cheat called "Liapp" to detect tampering and force close the application or prevent attaching if it's already launched. I also tried developing a mod menu using the functions to hook, but recompiling the .apk also triggers Liapp detection, so the app crashes on launch. If you were able to do it just with Game Guardian alone, I'm gonna feel pretty dumb for how much time and research I've spent on this. Then again, it was for fun, but it's still very frustrating to not know what I'm missing lol